Red Dwarfs: The Most Common and Longest-Lived Stars
Most of the star nearest to Earth are red dwarfs, but they are too dim to be seen with the naked eye.
Most of the star nearest to Earth are red dwarfs, but they are too dim to be seen with the naked eye.
A pair of stunning nebulas shine as one in this colorful view captured by the Hubble Space Telescope just in time for the holidays.
JPL is the space agency's go-to center for the robotic exploration of worlds beyond Earth.
Luna 9 was the first soft landing mission on the moon. The Soviet spacecraft arrived three years before the first humans stepped out on the surface.
If you're up late tonight — or rather, during the pre-dawn hours of Thursday (Dec. 22) — two objects will likely catch your eye if the sky is clear.
While aspects of the new science-fiction film "Passengers" may seem like pies in the sky to skeptics, creators of the futuristic space thriller certainly outdid "Gravity" and "Interstellar" in the physics department.
The first pioneers on Mars may build their homes using the ice beneath their feet.
The 2016 Ursid meteor shower will peak overnight tonight and early Thursday (Dec. 21 and 22), but don't expect a jaw-dropping shooting-star display. Here's what to expect from the Ursids this year.
Astronomers may have to think a little harder to solve the mystery of Boyajian's star, whose strange dimming events over the past seven years have spawned talk of a possible "alien megastructure."
The office of President-elect Trump is reportedly considering adding more people to the NASA transition team.
About 100 volunteer contributors have been processing images captured by NASA's Juno spacecraft.
Astrophotographer Jeff Warner took the image of the supermoon rising over Denver as captured from Green Mountain in Lakewood, CO on Nov. 14, 2016.
One and a half million people turned out four years ago to watch as NASA's space shuttle Endeavour slowly navigated Los Angeles to arrive at the California Science Center for display. Gil Garcetti was not among them, a regret he would not make again.
Since Sputnik 1 launched in 1957, nations have been racing to gain a military advantage in space — the ultimate "high ground." Check out the top 10 space weapon concepts from over the years.
Winter officially kicks off Wednesday (Dec. 21), which marks the December solstice — the day with the fewest hours of sunlight of 2016. Here's why.
Space sensors will help missile defense meet the next generation of threats, experts say.
The spacecraft's optical system, including its mirrors and instruments, were undergoing a vibration test at the Goddard Space Flight Center earlier this month to simulate launch conditions when the anomaly was detected.
The journal Nature has named Gabriela Gonzalez, LIGO spokeswoman, and Guillem Anglada-Escudé, leader of the team that discovered the exoplanet Proxima b, to the publication's annual list of "10 people who mattered in science."
"Passengers," the new science fiction movie starring Jennifer Lawrence and Chris Pratt, is set hundreds of years in the future aboard an interstellar spaceship, but it was inspired by a real astronaut's experience almost half a century in the past.